How about:
Glorious Death

Instant
As an additional cost to play Glorious Death, sacrifice a creature.
Untap and remove from combat target creature you control.
Tap all creatures blocking target creature, and Glorious Death Death deals

damage divided evenly, rounded down,
to all creatures tapped in this way, where

is equal to the power of the sacrificed creature.
Go. Now.I changed the CC because its now like fling, but it can't target a player. I dont know whether it should also target the creature being dealt damage. I added the tap ability based upon flavor.
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